#2A7BB3#2A7BB3

#2A7BB3 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.1% C 0.116 H 243.3°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#2A7BB3
RGB	rgb(42, 123, 179)
HSL	hsl(205, 62%, 43%)
HSV	hsv(205, 77%, 70%)
CMYK	cmyk(76.5%, 31.3%, 0%, 29.8%)
CIE-LAB	lab(49.39, -4.79, -36.51)
CIE-LCH	lch(49.39, 36.82, 262.53°)
OKLab	oklab(56.09% -0.052 -0.1035)
OKLCH	oklch(56.09% 0.116 243.3)
XYZ	xyz(16.1713, 17.9109, 45.2440)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A7BB3 #B3622A

analogous

#2AB3A6 #2A7BB3 #2A36B3

triadic

#2A7BB3 #B32A7B #7BB32A

tetradic

#2A7BB3 #A62AB3 #B3622A #36B32A

square

#2A7BB3 #A62AB3 #B3622A #36B32A

split-complementary

#2A7BB3 #B32A36 #B3A62A

monochromatic

#133750 #1E5981 #2A7BB3 #469AD4 #78B5DF

Accessibility & contrast

On white

4.58

#2A7BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#2A7BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2A7BB3

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A7BB3	#FFFFFF	#000000	##000000
##2A7BB3	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617CB5

Deuteranopia (green-blind)

#4E70B2

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #2a7bb3;
/* rgb */ color: rgb(42, 123, 179);
/* oklch */ color: oklch(56.1% 0.116 243.3);

Tailwind

colors: {
  custom: {
    50: '#77a0ca',
    500: '#2a7bb3',
    950: '#000000',
  },
}

SCSS

$custom: #2a7bb3;
$custom-light: #77a0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2a7bb3",
  "rgb": {
    "r": 42,
    "g": 123,
    "b": 179
  },
  "hsl": {
    "h": 204.526,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.56091,
    "c": 0.11581,
    "h": 243.3
  },
  "luminance": 0.17913
}

Semantic roles & 50–950 ramp

primary

#2A7BB3

secondary

#C79572

accent

#8543E5

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2A7BB3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →